Github user bbuild11 commented on the issue:

    https://github.com/apache/incubator-zeppelin/pull/868
  
    I get this in the Zeppelin log file:
    
    ERROR [2016-06-03 16:49:20,929] ({qtp519821334-82} 
NotebookServer.java[onMessage]:210) - Can't handle message
    java.lang.NullPointerException
        at 
org.apache.zeppelin.socket.NotebookServer.onMessage(NotebookServer.java:128)
        at 
org.apache.zeppelin.socket.NotebookSocket.onWebSocketText(NotebookSocket.java:56)
        at 
org.eclipse.jetty.websocket.common.events.JettyListenerEventDriver.onTextMessage(JettyListenerEventDriver.java:128)
        at 
org.eclipse.jetty.websocket.common.message.SimpleTextMessage.messageComplete(SimpleTextMessage.java:69)
        at 
org.eclipse.jetty.websocket.common.events.AbstractEventDriver.appendMessage(AbstractEventDriver.java:65)
        at 
org.eclipse.jetty.websocket.common.events.JettyListenerEventDriver.onTextFrame(JettyListenerEventDriver.java:122)
        at 
org.eclipse.jetty.websocket.common.events.AbstractEventDriver.incomingFrame(AbstractEventDriver.java:161)
        at 
org.eclipse.jetty.websocket.common.WebSocketSession.incomingFrame(WebSocketSession.java:309)
        at 
org.eclipse.jetty.websocket.common.extensions.ExtensionStack.incomingFrame(ExtensionStack.java:214)
        at 
org.eclipse.jetty.websocket.common.Parser.notifyFrame(Parser.java:220)
        at org.eclipse.jetty.websocket.common.Parser.parse(Parser.java:258)
        at 
org.eclipse.jetty.websocket.common.io.AbstractWebSocketConnection.readParse(AbstractWebSocketConnection.java:632)
        at 
org.eclipse.jetty.websocket.common.io.AbstractWebSocketConnection.onFillable(AbstractWebSocketConnection.java:480)
        at 
org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:544)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)
        at java.lang.Thread.run(Thread.java:745)
     INFO [2016-06-03 16:54:20,934] ({qtp519821334-86} 
NotebookServer.java[onClose]:216) - Closed connection to 10.4.67.203 : 56658. 
(1001) Idle Timeout
    ERROR [2016-06-03 17:06:45,825] ({Thread-21} 
JobProgressPoller.java[run]:54) - Can not get or update progress
    org.apache.zeppelin.interpreter.InterpreterException: 
org.apache.thrift.transport.TTransportException
        at 
org.apache.zeppelin.interpreter.remote.RemoteInterpreter.getProgress(RemoteInterpreter.java:361)
        at 
org.apache.zeppelin.interpreter.LazyOpenInterpreter.getProgress(LazyOpenInterpreter.java:110)
        at org.apache.zeppelin.notebook.Paragraph.progress(Paragraph.java:226)
        at 
org.apache.zeppelin.scheduler.JobProgressPoller.run(JobProgressPoller.java:51)
    Caused by: org.apache.thrift.transport.TTransportException
        at 
org.apache.thrift.transport.TIOStreamTransport.read(TIOStreamTransport.java:132)
        at org.apache.thrift.transport.TTransport.readAll(TTransport.java:86)
        at 
org.apache.thrift.protocol.TBinaryProtocol.readAll(TBinaryProtocol.java:429)
        at 
org.apache.thrift.protocol.TBinaryProtocol.readI32(TBinaryProtocol.java:318)
        at 
org.apache.thrift.protocol.TBinaryProtocol.readMessageBegin(TBinaryProtocol.java:219)
        at org.apache.thrift.TServiceClient.receiveBase(TServiceClient.java:69)
        at 
org.apache.zeppelin.interpreter.thrift.RemoteInterpreterService$Client.recv_getProgress(RemoteInterpreterService.java:279)
        at 
org.apache.zeppelin.interpreter.thrift.RemoteInterpreterService$Client.getProgress(RemoteInterpreterService.java:264)
        at 
org.apache.zeppelin.interpreter.remote.RemoteInterpreter.getProgress(RemoteInterpreter.java:358)
        ... 3 more
    ERROR [2016-06-03 17:26:57,357] ({Thread-40} 
JobProgressPoller.java[run]:54) - Can not get or update progress
    org.apache.zeppelin.interpreter.InterpreterException: 
org.apache.thrift.transport.TTransportException
        at 
org.apache.zeppelin.interpreter.remote.RemoteInterpreter.getProgress(RemoteInterpreter.java:361)
        at 
org.apache.zeppelin.interpreter.LazyOpenInterpreter.getProgress(LazyOpenInterpreter.java:110)
        at org.apache.zeppelin.notebook.Paragraph.progress(Paragraph.java:226)
        at 
org.apache.zeppelin.scheduler.JobProgressPoller.run(JobProgressPoller.java:51)
    Caused by: org.apache.thrift.transport.TTransportException
        at 
org.apache.thrift.transport.TIOStreamTransport.read(TIOStreamTransport.java:132)
        at org.apache.thrift.transport.TTransport.readAll(TTransport.java:86)
        at 
org.apache.thrift.protocol.TBinaryProtocol.readAll(TBinaryProtocol.java:429)
        at 
org.apache.thrift.protocol.TBinaryProtocol.readI32(TBinaryProtocol.java:318)
        at 
org.apache.thrift.protocol.TBinaryProtocol.readMessageBegin(TBinaryProtocol.java:219)
        at org.apache.thrift.TServiceClient.receiveBase(TServiceClient.java:69)
        at 
org.apache.zeppelin.interpreter.thrift.RemoteInterpreterService$Client.recv_getProgress(RemoteInterpreterService.java:279)
        at 
org.apache.zeppelin.interpreter.thrift.RemoteInterpreterService$Client.getProgress(RemoteInterpreterService.java:264)
        at 
org.apache.zeppelin.interpreter.remote.RemoteInterpreter.getProgress(RemoteInterpreter.java:358)
        ... 3 more
    
    And in the Interpreter for Spark log file:
    
     INFO [2016-06-03 17:26:57,773] ({pool-2-thread-3} 
SparkInterpreter.java[createSparkContext]:225) - ------ Create new SparkContext 
yarn-client -------
     WARN [2016-06-03 17:26:57,773] ({pool-2-thread-3} 
SparkInterpreter.java[createSparkContext]:249) - Spark method classServerUri 
not available due to: 
[org.apache.spark.repl.SparkILoop$SparkILoopInterpreter.classServerUri()]
     WARN [2016-06-03 17:26:57,774] ({pool-2-thread-3} 
Logging.scala[logWarning]:70) - Another SparkContext is being constructed (or 
threw an exception in its constructor).  This may indicate an error, since only 
one SparkContext may be running in this JVM (see SPARK-2243). The other 
SparkContext was created at:
    org.apache.spark.SparkContext.<init>(SparkContext.scala:83)
    
org.apache.zeppelin.spark.SparkInterpreter.createSparkContext(SparkInterpreter.java:330)
    
org.apache.zeppelin.spark.SparkInterpreter.getSparkContext(SparkInterpreter.java:118)
    org.apache.zeppelin.spark.SparkInterpreter.open(SparkInterpreter.java:499)
    
org.apache.zeppelin.interpreter.ClassloaderInterpreter.open(ClassloaderInterpreter.java:74)
    
org.apache.zeppelin.interpreter.LazyOpenInterpreter.open(LazyOpenInterpreter.java:68)
    
org.apache.zeppelin.interpreter.LazyOpenInterpreter.getProgress(LazyOpenInterpreter.java:109)
    
org.apache.zeppelin.interpreter.remote.RemoteInterpreterServer.getProgress(RemoteInterpreterServer.java:408)
    
org.apache.zeppelin.interpreter.thrift.RemoteInterpreterService$Processor$getProgress.getResult(RemoteInterpreterService.java:1492)
    
org.apache.zeppelin.interpreter.thrift.RemoteInterpreterService$Processor$getProgress.getResult(RemoteInterpreterService.java:1477)
    org.apache.thrift.ProcessFunction.process(ProcessFunction.java:39)
    org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:39)
    
org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run(TThreadPoolServer.java:285)
    
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    java.lang.Thread.run(Thread.java:745)
     INFO [2016-06-03 17:26:57,775] ({pool-2-thread-3} 
Logging.scala[logInfo]:58) - Running Spark version 1.6.0
     WARN [2016-06-03 17:26:57,776] ({pool-2-thread-3} 
Logging.scala[logWarning]:70) -
    SPARK_CLASSPATH was detected (set to 
':/home/zeppelin/incubator-zeppelin/interpreter/spark/dep/*:/home/zeppelin/incubator-zeppelin/interpreter/spark/*:/home/zeppelin/incubator-zeppelin/zeppelin-interpreter/target/lib/*::/home/zeppelin/incubator-zeppelin/conf:/home/zeppelin/incubator-zeppelin/conf:/home/zeppelin/incubator-zeppelin/zeppelin-interpreter/target/classes').
    This is deprecated in Spark 1.0+.
    
    Please instead use:
     - ./spark-submit with --driver-class-path to augment the driver classpath
     - spark.executor.extraClassPath to augment the executor classpath
    
     INFO [2016-06-03 17:26:57,773] ({pool-2-thread-3} 
SparkInterpreter.java[createSparkContext]:225) - ------ Create new SparkContext 
yarn-client -------
     WARN [2016-06-03 17:26:57,773] ({pool-2-thread-3} 
SparkInterpreter.java[createSparkContext]:249) - Spark method classServerUri 
not available due to: 
[org.apache.spark.repl.SparkILoop$SparkILoopInterpreter.classServerUri()]
     WARN [2016-06-03 17:26:57,774] ({pool-2-thread-3} 
Logging.scala[logWarning]:70) - Another SparkContext is being constructed (or 
threw an exception in its constructor).  This may indicate an error, since only 
one SparkContext may be running in this JVM (see SPARK-2243). The other 
SparkContext was created at:
    org.apache.spark.SparkContext.<init>(SparkContext.scala:83)
    
org.apache.zeppelin.spark.SparkInterpreter.createSparkContext(SparkInterpreter.java:330)
    
org.apache.zeppelin.spark.SparkInterpreter.getSparkContext(SparkInterpreter.java:118)
    org.apache.zeppelin.spark.SparkInterpreter.open(SparkInterpreter.java:499)
    
org.apache.zeppelin.interpreter.ClassloaderInterpreter.open(ClassloaderInterpreter.java:74)
    
org.apache.zeppelin.interpreter.LazyOpenInterpreter.open(LazyOpenInterpreter.java:68)
    
org.apache.zeppelin.interpreter.LazyOpenInterpreter.getProgress(LazyOpenInterpreter.java:109)
    
org.apache.zeppelin.interpreter.remote.RemoteInterpreterServer.getProgress(RemoteInterpreterServer.java:408)
    
org.apache.zeppelin.interpreter.thrift.RemoteInterpreterService$Processor$getProgress.getResult(RemoteInterpreterService.java:1492)
    
org.apache.zeppelin.interpreter.thrift.RemoteInterpreterService$Processor$getProgress.getResult(RemoteInterpreterService.java:1477)
    org.apache.thrift.ProcessFunction.process(ProcessFunction.java:39)
    org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:39)
    
org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run(TThreadPoolServer.java:285)
    
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    java.lang.Thread.run(Thread.java:745)
     INFO [2016-06-03 17:26:57,775] ({pool-2-thread-3} 
Logging.scala[logInfo]:58) - Running Spark version 1.6.0
     WARN [2016-06-03 17:26:57,776] ({pool-2-thread-3} 
Logging.scala[logWarning]:70) -
    SPARK_CLASSPATH was detected (set to 
':/home/zeppelin/incubator-zeppelin/interpreter/spark/dep/*:/home/zeppelin/incubator-zeppelin/interpreter/spark/*:/home/zeppelin/incubator-zeppelin/zeppelin-interpreter/target/lib/*::/home/zeppelin/incubator-zeppelin/conf:/home/zeppelin/incubator-zeppelin/conf:/home/zeppelin/incubator-zeppelin/zeppelin-interpreter/target/classes').
    This is deprecated in Spark 1.0+.
    
    Please instead use:
     - ./spark-submit with --driver-class-path to augment the driver classpath
     - spark.executor.extraClassPath to augment the executor classpath
    
     WARN [2016-06-03 17:26:57,776] ({pool-2-thread-3} 
Logging.scala[logWarning]:70) - Setting 'spark.executor.extraClassPath' to 
':/home/zeppelin/incubator-zeppelin/interpreter/spark/dep/*:/home/zeppelin/incubator-zeppelin/interpreter/spark/*:/home/zeppelin/incubator-zeppelin/zeppelin-interpreter/target/lib/*::/home/zeppelin/incubator-zeppelin/conf:/home/zeppelin/incubator-zeppelin/conf:/home/zeppelin/incubator-zeppelin/zeppelin-interpreter/target/classes'
 as a work-around.
     WARN [2016-06-03 17:26:57,776] ({pool-2-thread-3} 
Logging.scala[logWarning]:70) - Setting 'spark.driver.extraClassPath' to 
':/home/zeppelin/incubator-zeppelin/interpreter/spark/dep/*:/home/zeppelin/incubator-zeppelin/interpreter/spark/*:/home/zeppelin/incubator-zeppelin/zeppelin-interpreter/target/lib/*::/home/zeppelin/incubator-zeppelin/conf:/home/zeppelin/incubator-zeppelin/conf:/home/zeppelin/incubator-zeppelin/zeppelin-interpreter/target/classes'
 as a work-around.
     INFO [2016-06-03 17:26:57,776] ({pool-2-thread-3} 
Logging.scala[logInfo]:58) - Changing view acls to: zeppelin
     INFO [2016-06-03 17:26:57,776] ({pool-2-thread-3} 
Logging.scala[logInfo]:58) - Changing modify acls to: zeppelin
     INFO [2016-06-03 17:26:57,776] ({pool-2-thread-3} 
Logging.scala[logInfo]:58) - SecurityManager: authentication disabled; ui acls 
disabled; users with view permissions: Set(zeppelin); users with modify 
permissions: Set(zeppelin)
     INFO [2016-06-03 17:26:57,784] ({pool-2-thread-3} 
Logging.scala[logInfo]:58) - Successfully started service 'sparkDriver' on port 
51559.
     INFO [2016-06-03 17:26:57,843] 
({sparkDriverActorSystem-akka.actor.default-dispatcher-2} 
Slf4jLogger.scala[applyOrElse]:80) - Slf4jLogger started
     INFO [2016-06-03 17:26:57,846] 
({sparkDriverActorSystem-akka.actor.default-dispatcher-3} 
Slf4jLogger.scala[apply$mcV$sp]:74) - Starting remoting
     INFO [2016-06-03 17:26:57,853] 
({sparkDriverActorSystem-akka.actor.default-dispatcher-3} 
Slf4jLogger.scala[apply$mcV$sp]:74) - Remoting started; listening on addresses 
:[akka.tcp://[email protected]:34296]
     INFO [2016-06-03 17:26:57,853] 
({sparkDriverActorSystem-akka.actor.default-dispatcher-3} 
Slf4jLogger.scala[apply$mcV$sp]:74) - Remoting now listens on addresses: 
[akka.tcp://[email protected]:34296]
     INFO [2016-06-03 17:26:57,854] ({pool-2-thread-3} 
Logging.scala[logInfo]:58) - Successfully started service 
'sparkDriverActorSystem' on port 34296.
     INFO [2016-06-03 17:26:57,854] ({pool-2-thread-3} 
Logging.scala[logInfo]:58) - Registering MapOutputTracker
     INFO [2016-06-03 17:26:57,855] ({pool-2-thread-3} 
Logging.scala[logInfo]:58) - Registering BlockManagerMaster
     INFO [2016-06-03 17:26:57,856] ({pool-2-thread-3} 
Logging.scala[logInfo]:58) - Created local directory at 
/tmp/blockmgr-7aec5561-fd7c-4023-84cf-5ddd3aef88a4
     INFO [2016-06-03 17:26:57,857] ({pool-2-thread-3} 
Logging.scala[logInfo]:58) - MemoryStore started with capacity 528.1 MB
     INFO [2016-06-03 17:26:57,890] ({pool-2-thread-3} 
Logging.scala[logInfo]:58) - Registering OutputCommitCoordinator
     INFO [2016-06-03 17:26:57,897] ({pool-2-thread-3} 
Server.java[doStart]:272) - jetty-8.y.z-SNAPSHOT
     INFO [2016-06-03 17:26:57,902] ({pool-2-thread-3} 
AbstractConnector.java[doStart]:338) - Started 
[email protected]:4040
     INFO [2016-06-03 17:26:57,903] ({pool-2-thread-3} 
Logging.scala[logInfo]:58) - Successfully started service 'SparkUI' on port 
4040.
     INFO [2016-06-03 17:26:57,904] ({pool-2-thread-3} 
Logging.scala[logInfo]:58) - Started SparkUI at http://172.28.22.133:4040
     INFO [2016-06-03 17:26:57,924] ({pool-2-thread-3} 
Logging.scala[logInfo]:58) - Created default pool default, schedulingMode: 
FIFO, minShare: 0, weight: 1
     INFO [2016-06-03 17:26:57,955] ({pool-2-thread-3} 
RMProxy.java[createRMProxy]:98) - Connecting to ResourceManager at /0.0.0.0:8032
     INFO [2016-06-03 17:26:58,958] ({pool-2-thread-3} 
Client.java[handleConnectionFailure]:867) - Retrying connect to server: 
0.0.0.0/0.0.0.0:8032. Already tried 0 time(s); retry policy is 
RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1000 MILLISECONDS)
     INFO [2016-06-03 17:26:59,959] ({pool-2-thread-3} 
Client.java[handleConnectionFailure]:867) - Retrying connect to server: 
0.0.0.0/0.0.0.0:8032. Already tried 1 time(s); retry policy is 
RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1000 MILLISECONDS)
     INFO [2016-06-03 17:27:00,961] ({pool-2-thread-3} 
Client.java[handleConnectionFailure]:867) - Retrying connect to server: 
0.0.0.0/0.0.0.0:8032. Already tried 2 time(s); retry policy is 
RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1000 MILLISECONDS)
    
    Hope this helps.
    
    Thanks,
    Ben
    
    > On Jun 3, 2016, at 10:14 AM, Felix Cheung <[email protected]> 
wrote:
    > 
    > Can you check the log file?
    > 
    > —
    > You are receiving this because you commented.
    > Reply to this email directly, view it on GitHub 
<https://github.com/apache/incubator-zeppelin/pull/868#issuecomment-223637827>, 
or mute the thread 
<https://github.com/notifications/unsubscribe/ABxu9MdO4CkE120f89WRXAnowf1Y1yXBks5qIGDvgaJpZM4IS7A7>.
    > 
    



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